/**  首页   */
.showTop{
  display: block;
}
.hideTop{
  display: none;
}
@media screen and (min-width: 1200px) {
  .top {
    width: 100%;
    height: 777px;
    position: relative;
  }

  #video_detail {
    z-index: 9999;
    background: rgb(0, 0, 0);
  }

  .black_mask {
    width: 100%;
    height: 777px;
    position: absolute;
    top: 0;
    left: 0;
    background-color: rgba(0, 0, 0, 0.2);
    z-index: 1;
  }
  .nav {
    height: 70px;
    padding: 30px 160px;
    position: relative;
    z-index: 2;
  }
  .nav_text {
    float: right;
  }

  .nav_text a {
    color: #ffffff;
    font-weight: 900;
    display: inline-block;
    margin: 0 30px;
    font-size: 22px;
    height: 70px;
    line-height: 70px;
  }
  .nav_text .nav_text_alpha {
    color: rgba(255, 255, 255, 0.6);
  }
  .nav_text a:hover {
    color: rgba(255, 255, 255, 1);
    transition: .2s;
  }
  .nav_shouye_white {
    width: 100%;
    height: 129px;
    border-bottom: 1px solid #e5e5e5;
    position: fixed;
    left: 0;
    top: 0px;
    z-index: 999;
    background-color: #ffffff;
    opacity: 1;
  }
  .nav_shouye_white img {
    margin: 30px 160px;
    float: left;
    height: 70px;
    /*width: 64px;*/
  }
  .nav_shouye_white_text {
    float: right;
    margin-right: 160px;
  }

  .nav_shouye_white_text a {
    color: #333333;
    font-weight: 900;
    display: inline-block;
    margin: 0 30px;
    font-size: 22px;
    height: 130px;
    line-height: 130px;
  }
  .videoClose {
    position: absolute;
    right: 20px;
    top: 65px;
    z-index: 10000;
    width: 50px;
    cursor: pointer;
  }
  video{
    position: absolute;
    top: 0;
    left: 0;
  }
  .full{
    height:100%;
    width:100%;
  }
  .top0{
    top: 0;
  }
  .flex{
    position: fixed;
  }
  .videoClose {
    position: absolute;
    right: 0.533rem;
    top: 1.733rem;
    z-index: 10000;
    width: 1.333rem;
    cursor: pointer;
  }
  #video_detail {
    z-index: 9999;
    background: rgb(0, 0, 0);
    height: 100%;
    width: 100%;
    top: 0;
    object-fit:fill;
    position: fixed;
  }
}
